siliconbits writes: We've received an email from ARM that confirms that the Cortex-A15 will be at least 40 per cent faster than the A9 when it comes to raw performance (Dhrystone MIPS), all things equal; same number of core, same speed. According to our contact at ARM, the A15 has a "published but not formal number" of 3.5 DMIPS/MHz but told us that the performance difference across generation is "dependent on many factors" before adding that "Other benchmarks can show less improvement on specific devices, others a greater improvement". ARM has yet to officially publish the Cortex-A15 figures on its website. The Cortex-A8 reached 2.0 DMIPS/MHz while the Cortex-A9 reached 2.5 DMIPS/MHz, a 25 per cent improvement. Given that startups like Caldexa are already developing quad-core iteration of the Cortex-A9, one can easily envision that a 4-core Cortex-A15 will shatter the 40K DMIPS barrier, putting it within touching distance of the AMD Phenom II X4 940 Black Edition which reached almost 43K DMIPS running at 3GHz.Link to Original Source